2W3N

Structure and inhibition of the CO2-sensing carbonic anhydrase Can2 from the pathogenic fungus Cryptococcus neoformans

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1T75	PDB ENTRY 1T75

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1				24% PEG3350, 0.2 M AMMONIUM ACETATE, 0.01 M MAGNESIUM ACETATE, 0.05M SODIUM CACODYLATE PH 6.6

Crystal Properties
Matthews coefficient	Solvent content
2.35	47.66

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 177.98	α = 90
b = 56.59	β = 116.58
c = 83.22	γ = 90

Symmetry
Space Group	C 1 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	MARRESEARCH			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X10SA		SLS	X10SA

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	2.05	46.8	98.5	0.13		1		46398		3.01

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.05	2.15	97.1		0.491	3.01	1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1T75	2.05	79.56	44060	2337	99.1	0.18878	0.18653	0.23086	RANDOM	33.694

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]
-1.21		-0.38	1.36		-0.49

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.235
r_dihedral_angle_4_deg	18.217
r_dihedral_angle_3_deg	16.14
r_dihedral_angle_1_deg	7.185
r_scangle_it	5.783
r_scbond_it	3.836
r_mcangle_it	2.341
r_mcbond_it	1.521
r_angle_refined_deg	1.5
r_nbtor_refined	0.32
r_nbd_refined	0.227
r_symmetry_vdw_refined	0.223
r_symmetry_hbond_refined	0.172
r_xyhbond_nbd_refined	0.134
r_chiral_restr	0.103
r_bond_refined_d	0.015
r_gen_planes_refined	0.006
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5263
Nucleic Acid Atoms
Solvent Atoms	144
Heterogen Atoms	21

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	phasing